The open source Firebase alternative. Supabase adds realtime and restful APIs to Postgres without a single line of code.

SuperTokens is described as 'Open source user authentication solution. Using SuperTokens, developers can add secure, hassle free auth to their mobile application or website in less than a day. It n alternative to Auth0, Firebase Auth and AWS Cognito' and is an app in the security & privacy category. There are more than 10 alternatives to SuperTokens for a variety of platforms, including Web-based, SaaS, Self-Hosted, Windows and Linux apps. The best SuperTokens alternative is Supabase, which is both free and Open Source. Other great apps like SuperTokens are Keycloak, Firebase, AuthKit and Hanko.
The open source Firebase alternative. Supabase adds realtime and restful APIs to Postgres without a single line of code.

Open Source Identity and Access Management for modern Applications and Services.




Firebase, provided by Google, is a backend service and application development platform. It uses AI, cloud infrastructure, and cross-platform SDKs for efficient app development. Firebase offers tools and infrastructure for app creation and business growth.




AuthKit is a Radix-powered open source authentication UI built for effortless customizations. User Management is the backend platform handling email verification, account linking, bot blocking, organization modeling, and more.




Hanko is a modern open source Authentication & User Management system – built and hosted in the EU. Alternative to Clerk, Auth0, Stytch, Descope.

Stack is an open-source, self-hostable, and highly customizable authentication and user management system.


Kanidm is an identity management server, acting as an authority on account information, authentication and authorisation within a technical environment.


You can connect any application (written in any language or on any stack) to Auth0 and define its Connection, the method used to authenticate the users of that application:



Express is a minimal yet robust Node.js web application framework, providing extensive HTTP utilities and middleware for rapid API creation. Its thin and adaptable architecture ensures simplicity while retaining Node.js core features, making it ideal for scalable apps.

express js is rest api framework, not an authentication provider


Clerk is more than a "sign-in box." Integrate complete user management UIs and APIs, purpose-built for React, Next.js, and the Modern Web.

Amazon Cognito lets you add user sign-up/sign-in and access control to your web and mobile apps quickly and easily. Cognito scales to millions of users, and supports sign-in with social identity providers such as FB, Google, and Amazon, and SAML 2.0.

Firebase also manages sessions.